A train lateral turnout intrusion protection method and device

Abstract

The present invention provides a method and device for protecting against lateral turnout intrusion of a train, the method comprising: obtaining the approach status of a target train, and obtaining the intrusion status of a preceding vehicle located in the intrusion area of ​​a lateral turnout; formulating an intrusion protection strategy according to the approach status of the target train and the intrusion status of the preceding vehicle. The method and device for protecting against lateral turnout intrusion of a train provided by the present invention provide corresponding protection against the intrusion of a train on an adjacent lateral track when the target train is running in the turnout section, mainly using the logic of track occupancy check of track circuits and interlocking, position report calculation of an onboard system, and controlling the movement authorization of the train in real time according to the running characteristics of freight trains in different situations, effectively ensuring that no other trains intrude on the lateral or directional turnouts of the adjacent track section of the line ahead of the train, thereby improving the driving safety of the train.

Description

Technical Field

[0001] The present invention relates to the field of rail transit technology, and in particular to a method and device for protecting a train from lateral turnout intrusion. Background Art

[0002] External facility intrusion refers to the situation where all facilities and equipment within the rail transit area and external units are displaced due to various reasons and intrude into the equipment limits; or vehicle equipment and its loading exceed the vehicle limits, affecting the safe operation of trains on this section of the line, all of which require professional repairs and rescue.

[0003] The encroachment of external facilities will have varying degrees of impact on driving in the affected areas, and may cause failure or damage to important driving facilities and equipment such as the rail transit main line, vehicle depot (parking lot) lines, contact lines, signals, vehicles, electromechanical, and passenger services, requiring professional repairs and rescue before driving can be resumed.

[0004] The existing interlocking system also has an intrusion detection function. When the train has not entered the corresponding approach of the intrusion protection section, if an intrusion occurs in the relevant intrusion section within the driving permission range, or if the track section is occupied due to a fault, there will be a risk of a collision. At this time, the interlocking system will conduct a safety check on the intrusion protection and directly close the approach signal of the corresponding approach, prohibiting the communication train from entering this area.

[0005] However, when the front position of the target train has entered the route corresponding to the restricted protection section, if the relevant restricted section within the driving permission range is invaded again, the interlocking system will no longer be able to protect the train operation. Summary of the invention

[0006] The present invention provides a train lateral turnout intrusion protection method and system, which are used to solve the defects of existing intrusion protection, such as single protection strategy and strong constraints on protection conditions, and realize intelligent, safe and comprehensive driving intrusion protection.

[0007] In the first aspect, the present invention provides a method for protecting against lateral turnout intrusion by a train, comprising: obtaining the route status of a target train, and obtaining the intrusion status of a preceding vehicle located in the intrusion area of ​​a lateral turnout; formulating an intrusion protection strategy according to the route status of the target train and the intrusion status of the preceding vehicle. The route status of the target train includes routed and not routed, and the intrusion status of the preceding vehicle includes intrusion and not intrusion; when the preceding vehicle is a non-communication train, the intrusion status is determined according to the rear position of the preceding vehicle; when the preceding vehicle is a communication train, the intrusion status is determined according to the protection envelope of the preceding vehicle.

[0008] According to a method for protecting against lateral turnout intrusion by a train provided by the present invention, an intrusion protection strategy is formulated according to the approach status of the target train and the intrusion status of the preceding train, including: when it is determined that the approach status of the target train is not approaching and there are other trains in the intrusion area of ​​any lateral turnout, the formulated intrusion protection strategy is to withdraw the movement authorization of the target train to the approach signal.

[0009] According to a method for protecting against lateral turnout intrusion by a train provided by the present invention, an intrusion protection strategy is formulated according to the approach status of the target train and the intrusion status of the preceding vehicle, including: when it is determined that the approach status of the target train is already on route and the intrusion status of the preceding vehicle is not intrusion, the formulated intrusion protection strategy is to cancel the movement authorization of the target train.

[0010] According to a method for protecting against lateral turnout intrusion by a train provided by the present invention, an intrusion protection strategy is formulated according to the approach status of the target train and the intrusion status of the preceding vehicle, including: when it is determined that the approach status of the target train is not approaching and the intrusion status of the preceding vehicle is already intruding, the formulated intrusion protection strategy is to withdraw the movement authorization of the target train to the approach signal, and output braking or remind the driver to slow down and stop through the train protection system of the target train.

[0011] According to a method for protecting against lateral turnout intrusion by a train provided by the present invention, an intrusion protection strategy is formulated according to the approach status of the target train and the intrusion status of the preceding vehicle, including: when it is determined that the approach status of the target train is that it has approached, and the intrusion status of the preceding vehicle is that it has intruded, the formulated intrusion protection strategy is to cancel the movement authorization of the target train, and output emergency braking or remind the driver to make an emergency stop through the train protection system of the target train.

[0012] According to a train lateral turnout intrusion protection method provided by the present invention, when it is determined that the intrusion status of the preceding vehicle obtained is already intruded due to a track circuit failure, if it is determined that the route status of the target train is already on route, the formulated intrusion protection strategy is to cancel the movement authorization of the target train, and output emergency braking or remind the driver to make an emergency stop through the train protection system of the target train; if it is determined that the route status of the target train is not on route, the formulated intrusion protection strategy is to withdraw the movement authorization of the target train to the route signal, and output braking or remind the driver to slow down and stop through the train protection system of the target train.

[0013] According to a train lateral turnout intrusion protection method provided by the present invention, if the distance between the intrusion area and the track departure signal where the target train is located is greater than a preset distance threshold, the intrusion protection strategy is finally formulated as: notifying ground personnel to clear the intrusion area.

[0014] According to a train lateral turnout intrusion protection method provided by the present invention, if the target train is a freight train and the running speed of the target train is less than a preset speed threshold, the intrusion protection strategy is finally formulated as: notifying ground personnel to clear the intrusion area.

[0015] In the second aspect, the present invention also provides a train lateral turnout intrusion protection device, including: a data acquisition unit, used to obtain the route status of the target train, and obtain the intrusion status of the preceding vehicle located in the intrusion area of ​​the lateral turnout; a protection formulation unit, used to formulate an intrusion protection strategy according to the route status of the target train and the intrusion status of the preceding vehicle. The route status of the target train includes routed and not routed, and the intrusion status of the preceding vehicle includes intrusion and not intrusion; when the preceding vehicle is a non-communication train, the intrusion status is determined according to the rear position of the preceding vehicle; when the preceding vehicle is a communication train, the intrusion status is determined according to the protection envelope of the preceding vehicle.

[0016] In a third aspect, the present invention provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of any of the above-mentioned methods for protecting the lateral turnout from intrusion are implemented.

[0017] In a fourth aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the above-mentioned methods for protecting the lateral turnout from intrusion.

[0018] The train lateral turnout intrusion protection method and device provided by the present invention provide corresponding protection for the intrusion of trains on adjacent lateral tracks when a target train is running in a turnout section. The method and device mainly use the logic of track circuit and interlocking track occupancy check, position report calculation of the on-board system, etc., and control the movement authorization of the train in real time according to the running characteristics of freight trains in different situations, effectively ensuring that no other trains intrude on the lateral or directional turnouts of the adjacent track section of the line ahead of the train, thereby improving the driving safety of the train. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a flow chart of the train lateral turnout intrusion protection method provided by the present invention;

[0021] Figure 2 This is one of the schematic diagrams of driving scenarios in the restricted area provided by the present invention;

[0022] Figure 3 This is the second schematic diagram of the driving scene in the restricted area provided by the present invention;

[0023] Figure 4 This is the third schematic diagram of the driving scene in the restricted area provided by the present invention;

[0024] Figure 5 This is the fourth schematic diagram of the driving scene in the restricted area provided by the present invention;

[0025] Figure 6 It is a structural schematic diagram of a train lateral turnout intrusion protection device provided by the present invention;

[0026] Figure 7 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that in the description of the embodiments of the present invention, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "include one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements. The orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0030] Combine the following Figure 1-Figure 7 The present invention provides a method and device for protecting a train from lateral turnout intrusion.

[0031] Figure 1 FIG. 1 is a flow chart of a train lateral turnout intrusion protection method provided by the present invention, such as Figure 1 As shown, including but not limited to the following steps:

[0032] Step 101: Acquire the route status of the target train and acquire the intrusion status of the preceding train located in the intrusion area of ​​the lateral turnout;

[0033] Step 102: Formulate an intrusion protection strategy based on the route status of the target train and the intrusion status of the preceding train.

[0034] in,

[0035] It should be noted that the external facilities that cause the restriction on the driving of the target vehicle may be mobile facilities, fixed facilities and foreign objects, and also include the preceding vehicle located in the restricted area of ​​the lateral turnout. The present invention is only described by taking the preceding vehicle causing the restriction on the driving of the target train as an example, which is not regarded as a specific limitation on the protection scope of the present invention.

[0036] Among them, the intrusion area refers to the area between the section where the intrusion insulating joint on the lateral turnout is located and the track departure signal.

[0037] The mobile block system has a train-ground communication function. The train lateral turnout intrusion protection method provided by the present invention can be implemented on the existing mobile block system.

[0038] First, the Radio Block Center (RBC) in the mobile block system can determine the route status of the target train by receiving the relationship between the locomotive position of the target train and the position of the station entry signal.

[0039] Secondly, RBC can also determine the intrusion status of the preceding vehicle based on the relationship between the rear position of the preceding vehicle in the intrusion area of ​​the lateral turnout and the approach terminal signal on the turnout where the preceding vehicle is located.

[0040] Finally, based on the determined route status of the target train, the intrusion status of the preceding train, and the current running speed and load conditions of the target train, a comprehensive intrusion protection strategy can be formulated to ensure the driving safety of the target train.

[0041] If there are multiple lateral turnouts, it is necessary to identify the turnout intrusion that may occur on each turnout and determine the one that poses the greatest threat to the driving safety of the target train as the target intrusion.

[0042] The train lateral turnout intrusion protection method provided by the present invention performs corresponding protection against the intrusion of trains on adjacent lateral tracks when a target train runs in a turnout section. It mainly uses the logic of track circuit and interlocking track occupancy inspection, position report calculation of the on-board system, etc., and controls the movement authorization in real time during train operation according to the operation characteristics of freight trains in different situations, effectively ensuring that no other trains intrude on the lateral or directional turnouts of the adjacent track section of the line ahead of the train, thereby improving the driving safety of the train.

[0043] It should be pointed out that the route status of the above-mentioned target train mainly includes already entered the route and not entered the route, and the limit violation status of the above-mentioned leading vehicle mainly includes already violated the limit and not violated the limit; when the leading vehicle is a non-communication train, the limit violation status is determined according to the rear position of the leading vehicle; when the leading vehicle is a communication train, the limit violation status is determined according to the protection envelope of the leading vehicle.

[0044] The route status of the target train can be determined based on whether the front of the train passes the route signal corresponding to the route set in the intrusion protection section. If the front of the train passes the route signal, the route status of the target train is considered to have entered the route; if the front of the train does not pass the route signal, the route status of the target train is considered to have not entered the route.

[0045] In the current rail transit, the trains in operation are mainly communication trains, but there are still many non-communication trains on freight railways. If the front car on the lateral turnout in the intrusion protection section is a non-communication train, the intrusion status of the front car can be determined based on the rear position of the front car, that is, whether the position between the wheelset and the coupler has passed the lateral turnout where it is located, and the track departure signal in the intrusion protection section. If the rear position has passed the track departure signal, the intrusion status of the front car is considered to have been intruded; if the rear position has not passed the track departure signal, the intrusion status of the front car is considered to have not been intruded.

[0046] Accordingly, when it is determined that the preceding vehicle is a communication train, its protection envelope can be determined according to the current state and position information of the preceding vehicle, so as to determine the limit-invasion state of the preceding vehicle according to whether the protection envelope crosses the track departure signal. If the protection envelope crosses the track departure signal, the limit-invasion state of the preceding vehicle is considered to have been invading; if the protection envelope does not cross the track departure signal, the limit-invasion state of the preceding vehicle is considered to have not been invading.

[0047] The train lateral turnout intrusion protection method provided by the present invention distinguishes different situations causing intrusion to the train mainline operation according to the positions of the front and rear vehicles and the different driving control modes, and provides a basis for the subsequent differentiated formulation of corresponding intrusion protection strategies.

[0048] Based on the content of the above embodiment, as an optional embodiment, formulating a limit intrusion protection strategy according to the route status of the target train and the limit intrusion status of the preceding train includes:

[0049] When it is determined that the target train's route status is not on route and there are other trains in the restricted area of ​​any lateral turnout, the formulated intrusion protection strategy is to withdraw the movement authority (MA) of the target train to the route signal.

[0050] Figure 2 is one of the schematic diagrams of driving scenes in the restricted area provided by the present invention, such as Figure 2 As shown, in this scenario, the front of the target train has not passed the approach signal, and the front car on the lateral switch S1 is in the restricted area and is in a stopped state, and its rear has not passed the track departure signal of the switch or its authorized envelope is located behind the track departure signal, that is, the front car is in a non-encroaching state. Although the front car stops after entering the restricted section, and its rear has not entered the route where the normally operating target train is located, under normal circumstances, the target train will not collide with the front car, but it cannot be ruled out that the front car may retreat or slip, so there is still a risk of collision between the two cars. At this time, the Radio Block Center (RBC) in the mobile block system will still withdraw the car MA to the approach signal to prohibit the target train from entering the possible restricted section.

[0051] The train lateral turnout intrusion protection method provided by the present invention, when it is determined that there is a leading vehicle on the adjacent lateral track in the intrusion area, even if the leading vehicle is in a stopped state and has not passed the track departure signal where it is located, it is still considered that there is a risk of unexpected situations such as sliding down the slope, so that the MA of the target train on the main line is withdrawn to the greatest extent to ensure that the two vehicles will not collide, thereby effectively ensuring driving safety.

[0052] Based on the content of the above embodiment, as an optional embodiment, the above-mentioned formulating the limit intrusion protection strategy according to the route status of the target train and the limit intrusion status of the preceding train may also include:

[0053] When it is determined that the route status of the target train is already on route and the limit intrusion status of the preceding train is not intrusion, the formulated limit intrusion protection strategy is to cancel the movement authorization of the target train.

[0054] Figure 3 This is the second schematic diagram of the driving scene in the restricted area provided by the present invention, such as Figure 3 As shown, in this scenario, when the front of the target train has passed the approach signal, if it is determined that there is a leading vehicle in any lateral switch within the intrusion protection area, even if the rear of the leading vehicle has not passed the track departure signal of the switch or its authorized envelope has not passed the track departure signal, considering that the leading vehicle may retreat or slip, the RBC in the mobile block system of the present invention cancels the MA of the vehicle to prohibit the target train from continuing to drive towards the switch, thereby increasing the risk of collision with the leading vehicle.

[0055] For the target train on the approach route, which has passed the approach signal, but other trains appear in the limit intrusion protection area, the fixed block system cannot provide protection at this time. However, through the train lateral turnout limit intrusion protection method provided by the present invention, the RBC in the mobile block system determines that it is currently in the limit intrusion protection area through the position information reported by the preceding vehicle, and there is a risk of limit intrusion, so the MA sent to the target vehicle is revoked, so that the target vehicle is no longer allowed to go deep into the possible limit intrusion section. If necessary, the target vehicle can also be braked and stopped in advance according to its current speed.

[0056] Based on the content of the above embodiment, as an optional embodiment, the above-mentioned formulating the limit intrusion protection strategy according to the route status of the target train and the limit intrusion status of the preceding train may also include:

[0057] When it is determined that the target train's route status is not on route and the preceding train's limit intrusion status is already on route, the formulated limit intrusion protection strategy is to withdraw the target train's movement authorization to the route signal, and output braking or remind the driver to slow down and stop through the target train's train protection system.

[0058] Figure 4 This is the third schematic diagram of the driving scene in the restricted area provided by the present invention, such as Figure 4 As shown, in this scenario, when the front of the target train has not passed the approach signal, if it is determined that there is a leading vehicle in any lateral switch within the intrusion protection area, and the rear of the leading vehicle has passed the track departure signal of the switch or its authorized envelope has passed the track departure signal, the present invention cancels the MA of the vehicle by the RBC in the mobile block system to prohibit the target train from continuing to drive toward the switch, and at the same time controls its train braking system to output braking according to the current speed of the target train, or reminds the driver to slow down and stop, so as to avoid entering the intrusion train track section as much as possible and prevent the target train from having a side collision.

[0059] The train lateral turnout intrusion protection method provided by the present invention, when it is determined that the rear end of the front vehicle in the intrusion area has passed the track departure signal, takes the approach of withdrawing the MA of the target train on the approach to the approach signal to prohibit the train from entering the intrusion area, which can effectively reduce the possibility of a lateral collision between the target train and the front vehicle, thereby ensuring the driving safety of the train.

[0060] Based on the content of the above embodiment, as an optional embodiment, the above-mentioned formulating of the limit intrusion protection strategy according to the route status of the target train and the limit intrusion status of the preceding train may include:

[0061] When it is determined that the target train's route status is "already on route" and the preceding train's limit intrusion status is "already intruded", the formulated limit intrusion protection strategy is to cancel the movement authorization of the target train and output emergency braking or remind the driver to make an emergency stop through the train protection system of the target train.

[0062] Figure 5 This is the fourth schematic diagram of the driving scene in the restricted area provided by the present invention, such as Figure 5 As shown, in this scenario, when the front of the target train has passed the approach signal, if it is further determined that the rear of the preceding train in any lateral switch within the intrusion protection area has also passed the track departure signal of the switch or its authorized envelope has passed the track departure signal, in this scenario, a collision between the two trains is very likely to occur.

[0063] For this scenario, the present invention cancels the MA of the target train by the RBC in the mobile block system, and outputs 80kpa or above braking or emergency braking at the same time, so that the target train stops quickly and avoids entering the intrusion protection section.

[0064] The train lateral turnout intrusion protection method provided by the present invention performs emergency braking on the target train when it is confirmed that the target train has entered the track and the intrusion state of the preceding train is intrusion, so as to prevent the collision accident between the two trains from occurring to the greatest extent.

[0065] Based on the contents of the above embodiments, as an optional embodiment, when it is determined that the intrusion status of the preceding vehicle is already intruded due to a track circuit failure, if it is determined that the route status of the target train is already in route, the formulated intrusion protection strategy is to cancel the movement authorization of the target train, and output emergency braking or remind the driver to make an emergency stop through the train protection system of the target train.

[0066] If it is determined that the route status of the target train is not on route, the formulated intrusion protection strategy is to withdraw the movement authorization of the target train to the route signal, and output braking or remind the driver to slow down and stop through the train protection system of the target train.

[0067] When it is determined that the intrusion section detected by the interlocking is occupied by the preceding train due to a track circuit failure, but in fact there is no intruding train in the lateral switches within the intrusion protection area, for the sake of caution, the intrusion protection strategy provided by the present invention still adopts the method of withdrawing the MA of the target train and outputting emergency braking or reminding the driver to make an emergency stop through the train protection system of the target train, so as to eliminate the threat to driving safety caused by the reading errors of other signals due to the track circuit failure.

[0068] Among them, when the front of the target train has passed the approach signal, the above-mentioned withdrawal of the MA of the target train means canceling the movement authorization of the target train; when the front of the target train has not passed the approach signal, the above-mentioned withdrawal of the MA of the target train means canceling the movement authorization of the target train and withdrawing the movement authorization of the target train to the approach signal.

[0069] The train lateral turnout intrusion protection method provided by the present invention controls the MA of the train in real time according to the track occupancy inspection of the track circuit and the interlocking, and combines the position report of the train within the turnout range of the on-board system, especially when the track circuit fault is determined, the corresponding braking measures can be taken according to the current running speed of the train, thereby effectively ensuring the driving safety of each train.

[0070] Based on the contents of the above embodiments, as an optional embodiment, if the distance between the restricted area and the track departure signal where the target train is located is greater than a preset distance threshold, the restricted area protection strategy is finally formulated as: notifying ground personnel to clear the restricted area.

[0071] As another optional embodiment, if the target train is a freight train and the running speed of the target train is less than a preset speed threshold, the intrusion protection strategy is finally formulated as: notifying ground personnel to clear the intrusion area.

[0072] In order to clearly illustrate the intrusion protection strategy in this scenario, the present invention further illustrates the following embodiments of the present invention in combination with freight railway operation and line data analysis:

[0073] 1) For example, on freight railway lines, except for some stations, all other intermediate stations are mainline through stations under normal operation, and the running speed of trains between two adjacent stations is generally above 70km / h, with very few speed reductions.

[0074] 2) When the driver enters the station via the siding to pick up or dispatch a vehicle, the speed is usually controlled within 20 km / h, which is significantly lower than the normal operating speed.

[0075] 3) Since there is a risk of coupler breakage and derailment when freight trains implement emergency braking, the risk of emergency braking is even greater, especially when the speed is less than 20km / h.

[0076] 4) The mobile block system is equipped with train-to-ground communication function, and can identify the scenes within the receiving route range and the restricted area in front of the train after the train passes the receiving route signal at the station.

[0077] 5) There is a possibility that the restricted section may be occupied when receiving the train due to abnormal train slipping or track section failure.

[0078] With respect to freight railway operation and line data, the present invention provides different intrusion protection strategies according to different situations:

[0079] Scenario 1: When the target train passes through the station main line at 70 km / h, the length of the receiving throat area of ​​the station where the intrusion section is located is in the range of 274m-451m, which is smaller than the preset distance threshold.

[0080] According to the above embodiment, when a 5,000-ton, 10,000-ton, or 20,000-ton train enters the throat area at a speed of 70 km / h, if the restricted section is occupied by the preceding train, the MA of the current train will be withdrawn and emergency braking will be triggered.

[0081] However, in scenario 1, due to the high speed of the train and the short throat area, once the limit violation occurs, the driver has no additional means to protect it. Therefore, for the scenario where the limit violation section is close to the track departure signal and the limit violation section affects the train operation on the main line, the mobile block system will take the approach of directly withdrawing the MA to brake the train for protection.

[0082] Scenario 2: If the distance between the intrusion area and the departure signal of the track where the target train is located is far and greater than the preset distance threshold, when the target train passes through the main line, the station arranges operations near the intrusion insulation joint, such as shunting operations. The probability of a train parked on the track slipping abnormally from S1 and S2 to the section where the intrusion insulation joint is located is extremely small, which is the probability that the intrusion section is occupied due to a track circuit fault.

[0083] Another example: For any station's restricted section that affects the operation of the target train on the main line, the duty room and ground personnel will clear other line operations that affect the passage of the train on the main line in advance, but the mobile block system will not prompt or protect the restricted section to avoid interference with the driver.

[0084] Scenario 3: When freight trains are receiving or dispatching trains at the station siding, the running speed of the trains is generally below 20km / h. Since there is a high probability of coupler breakage or train derailment when freight trains implement emergency braking at speeds below 20km / h, when receiving trains at the siding, other operations that may affect the receiving trains will not be arranged near the restricted section of the receiving route under normal circumstances. There is also the possibility that the track circuit in the restricted section is occupied due to faults.

[0085] In scenario three, due to the low running speed of the train, the driver can observe the line conditions and perform train braking operations when receiving and dispatching trains on the siding. For the scenario where the freight train line affects the siding of the moving block train, the duty room and ground personnel clear other line operations that affect the train receiving route in advance, and the driver observes whether there is any intrusion on the ground at a low speed to protect the train operation. At this time, the moving block system does not prompt and protect the intrusion section to avoid interference with the driver.

[0086] The train lateral turnout intrusion protection method provided by the present invention combines the load and running speed of the target train itself to adjust the intrusion protection strategy in a targeted manner to ensure that the target train will not have an intrusion accident with the preceding vehicle. If the ground personnel have sufficient time to clear the intrusion area, there is no need to adjust the driving status of the target vehicle, thereby making the formulation and implementation of the strategy more scientific and reasonable.

[0087] Figure 6 Schematic diagram of the structure of a train lateral turnout intrusion protection device provided by the present invention, such as Figure 6 As shown, it mainly includes a data collection unit 61 and a protection formulation unit 62, wherein:

[0088] The data acquisition unit 61 is mainly used to obtain the approach status of the target train and the intrusion status of the preceding train located in the intrusion area of ​​the lateral turnout;

[0089] The protection formulation unit 62 is mainly used to formulate an intrusion protection strategy according to the route status of the target train and the intrusion status of the preceding train.

[0090] Among them, the route status of the target train includes already entered the route and not entered the route, and the limit violation status of the preceding vehicle includes already violated the limit and not violated the limit; when the preceding vehicle is a non-communication train, the limit violation status is determined according to the rear position of the preceding vehicle; when the preceding vehicle is a communication train, the limit violation status is determined according to the protection envelope of the preceding vehicle.

[0091] It should be noted that the train lateral turnout intrusion protection device provided in the embodiment of the present invention can execute the train lateral turnout intrusion protection method described in any of the above embodiments during specific operation, which will not be elaborated in this embodiment.

[0092] The train lateral turnout intrusion protection device provided by the present invention provides corresponding protection for the intrusion of trains on adjacent lateral tracks when a target train runs in a turnout section. It mainly uses the logic of track circuit and interlocking track occupancy check, position report calculation of the on-board system, etc., and controls the movement authorization in real time during train operation according to the running characteristics of freight trains in different situations, effectively ensuring that no other trains intrude on the lateral or directional turnouts of the adjacent track section of the line ahead of the train, thereby improving the driving safety of the train.

[0093] Figure 7 is a schematic diagram of the structure of the electronic device provided by the present invention, such as Figure 7 As shown, the electronic device may include: a processor 710, a communication interface 720, a memory 730 and a communication bus 740, wherein the processor 710, the communication interface 720 and the memory 730 communicate with each other through the communication bus 740. The processor 710 may call the logic instructions in the memory 730 to execute the train lateral turnout intrusion protection method, the method comprising: obtaining the approach state of the target train and obtaining the intrusion state of the preceding vehicle located in the intrusion area of ​​the lateral turnout; formulating an intrusion protection strategy according to the approach state of the target train and the intrusion state of the preceding vehicle.

[0094] In addition, the logic instructions in the above-mentioned memory 730 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0095] On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the train lateral switch intrusion protection method provided by the above-mentioned methods, and the method includes: obtaining the approach status of the target train, and obtaining the intrusion status of the leading vehicle located in the intrusion area of ​​the lateral switch; formulating an intrusion protection strategy according to the approach status of the target train and the intrusion status of the leading vehicle.

[0096] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it is implemented to execute the train lateral switch intrusion protection method provided in the above-mentioned embodiments, the method comprising: obtaining the approach status of the target train, and obtaining the intrusion status of the leading vehicle located in the intrusion area of ​​the lateral switch; formulating an intrusion protection strategy based on the approach status of the target train and the intrusion status of the leading vehicle.

[0097] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0098] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device, which can be a personal computer, a server, or a network device, etc., to execute the methods described in each embodiment or some parts of the embodiments.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for protecting train lateral turnout from intrusion, characterized in that: include: Obtain the route status of the target train and the intrusion status of the preceding train in the intrusion area of ​​the lateral turnout; Formulate a limit intrusion protection strategy according to the route status of the target train and the limit intrusion status of the preceding train; The target train's route status includes "already on route" and "not on route", and the preceding train's limit-invasion status includes "already on route" and "not on route". In the case where the preceding vehicle is a non-communication train, the limit intrusion state is determined according to the rear position of the preceding vehicle; if the rear position has passed the track departure signal located in the limit intrusion area, the limit intrusion state of the preceding vehicle is already intruded; if the rear position has not passed the track departure signal, the limit intrusion state of the preceding vehicle is not intruded; In the case where the preceding vehicle is a communication train, the limit intrusion state is determined according to the protection envelope of the preceding vehicle; if the protection envelope crosses the track departure signal, the limit intrusion state of the preceding vehicle is already intruded; if the protection envelope does not cross the track departure signal, the limit intrusion state of the preceding vehicle is not intruded; When it is determined that the target train has entered the route and the preceding train has not violated the limit, the formulated violation protection strategy is to cancel the movement authorization of the target train to prohibit the target train from continuing to drive toward the turnout; When it is determined that the route status of the target train is already on route, and the limit intrusion status of the preceding train is already intruded, the limit intrusion protection strategy is to cancel the movement authorization of the target train, and output emergency braking or remind the driver to make an emergency stop through the train protection system of the target train; When it is determined that the target train's route status is not on the route, and the preceding train's limit-invasion status is already on the route, the limit-invasion protection strategy is to withdraw the target train's movement authorization to the route signal to prohibit the target train from entering the limit-invasion area, and output braking or remind the driver to slow down and stop through the target train's train protection system; When it is determined that the target train is not on route and there are other trains in the restricted area of ​​any lateral turnout, the formulated restricted area protection strategy is to withdraw the movement authorization of the target train to the route signal; In the case where it is determined that the limit intrusion status of the preceding vehicle is already intruded due to a track circuit fault, if the route status of the target train is determined to be already in route, the formulated limit intrusion protection strategy is to cancel the movement authorization of the target train and output emergency braking or remind the driver to make an emergency stop through the train protection system of the target train; If it is determined that the route status of the target train is not on route, the formulated intrusion protection strategy is to withdraw the movement authorization of the target train to the route signal, and output braking or remind the driver to slow down and stop through the train protection system of the target train.

2. The train lateral turnout intrusion protection method according to claim 1 is characterized in that: If the distance between the restricted area and the track departure signal where the target train is located is greater than a preset distance threshold, the restricted area protection strategy is finally formulated as: notifying ground personnel to clear the restricted area.

3. The train lateral turnout intrusion protection method according to any one of claims 1-2 is characterized in that: If the target train is a freight train and the running speed of the target train is less than a preset speed threshold, the intrusion protection strategy is finally formulated as: notifying ground personnel to clear the intrusion area.

4. A train lateral turnout intrusion protection device, characterized in that: include: A data acquisition unit is used to obtain the route status of the target train and the intrusion status of the preceding train located in the intrusion area of ​​the lateral turnout; A protection formulation unit, used to formulate an intrusion protection strategy according to the route status of the target train and the intrusion status of the preceding train; The target train's route status includes "already on route" and "not on route", and the preceding train's limit-invasion status includes "already on route" and "not on route". In the case where the preceding vehicle is a non-communication train, the limit intrusion state is determined according to the rear position of the preceding vehicle; if the rear position has passed the track departure signal located in the limit intrusion area, the limit intrusion state of the preceding vehicle is already intruded; if the rear position has not passed the track departure signal, the limit intrusion state of the preceding vehicle is not intruded; In the case where the preceding vehicle is a communication train, the limit intrusion state is determined according to the protection envelope of the preceding vehicle; if the protection envelope crosses the track departure signal, the limit intrusion state of the preceding vehicle is already intruded; if the protection envelope does not cross the track departure signal, the limit intrusion state of the preceding vehicle is not intruded; The protection formulation unit is specifically used for: When it is determined that the target train has entered the route and the preceding train has not violated the limit, the formulated violation protection strategy is to cancel the movement authorization of the target train to prohibit the target train from continuing to drive toward the turnout; When it is determined that the route status of the target train is already on route, and the limit intrusion status of the preceding train is already intruded, the limit intrusion protection strategy is to cancel the movement authorization of the target train, and output emergency braking or remind the driver to make an emergency stop through the train protection system of the target train; When it is determined that the target train's route status is not on the route, and the preceding train's limit-invasion status is already on the route, the limit-invasion protection strategy is to withdraw the target train's movement authorization to the route signal to prohibit the target train from entering the limit-invasion area, and output braking or remind the driver to slow down and stop through the target train's train protection system; When it is determined that the target train is not on route and there are other trains in the restricted area of ​​any lateral turnout, the formulated restricted area protection strategy is to withdraw the movement authorization of the target train to the route signal; In the case where it is determined that the limit intrusion status of the preceding vehicle is already intruded due to a track circuit fault, if the route status of the target train is determined to be already in route, the formulated limit intrusion protection strategy is to cancel the movement authorization of the target train and output emergency braking or remind the driver to make an emergency stop through the train protection system of the target train; If it is determined that the route status of the target train is not on route, the formulated intrusion protection strategy is to withdraw the movement authorization of the target train to the route signal, and output braking or remind the driver to slow down and stop through the train protection system of the target train.

5. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the train lateral turnout intrusion protection method as described in any one of claims 1 to 3 are implemented.

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